Paraben's AdStopper automatically closes windows that pop-up when you visit certian sites. You don't have to play whack-a-mole every time you surf the net. Let Paraben's AdStopper beat the ads to the punch. Set the length of time between pop-up window scans to conserve processor time. Enable and disable quickly from your system tray. Add sites that you don't want to stop. Use the easy mode ad to specify key words to look for and only stop pop-ups with those words.